ARCADIS Acquires Callison

Global architecture and design firm Callison (Seattle) announced today that it will be acquired by Netherlands-based ARCADIS, a global natural and built asset design and consultancy firm.

Callison plans to join ARCADIS, which also owns the built asset consultancy firm EC HARRIS, architectural design firm RTKL, and Asia-based construction program planning and value management consultancy Langdon & Seah, according to The Wall Street Journal. Callison is one of the largest design firms in the U.S., with 11 offices and more than 1000 employees.

“This step enables us to expand our global network to gain greater market share and strengthen our ability to offer exceptional design and client service worldwide,” Callison chairman and ceo John Jastrem said in a statement.